Abstract
In this paper, we establish a general heterogeneous cellular network (HCN) model based on stochastic geometry and employ the accurate signal-to-interference-ratio (SIR) approximation of the ASAPPP (approximate SIR analysis based on the Poisson point process) technique to investigate spectrum allocation problems for general HCNs. Firstly, a spectrum partitioning problem where each tier uses a dedicated band is formulated to maximize the area spectral efficiency. The solution is obtained by approximating the problem with the ASAPPP method, deriving the optimal SIR thresholds, and solving a simple linear program to give the optimal spectrum allocation. Without a spectral efficiency constraint for each tier, the area spectral efficiency is maximized if the entire bandwidth is allocated to a single tier. Secondly it is shown that the proposed algorithm can also be used to solve the spectrum sharing optimization problem, where bands can be shared between tiers.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China under Grant 61701071, by the China Postdoctoral Science Foundations (2017M 621129, 2019M651095 and 2019T120204), by the open research fund of National Mobile Communications Research Laboratory, Southeast University (No. 2019D03) by the Fundamental Research Funds for the Central Universities under Grants DUT19RC(4)014, 3132019210 and 3132019220.
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Wei, H., liu, A., Deng, N. (2020). Tiered Spectrum Allocation for General Heterogeneous Cellular Networks. In: Liang, Q., Wang, W., Liu, X., Na, Z., Jia, M., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2019. Lecture Notes in Electrical Engineering, vol 571. Springer, Singapore. https://doi.org/10.1007/978-981-13-9409-6_162
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DOI: https://doi.org/10.1007/978-981-13-9409-6_162
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